Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 06:00Z
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∫₀^∞ e^(-r²) dr = √π / 2
46K
det| 7 4 ; 4 8 | = 40
468K
8r² + 5r + 7 = 0
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
∑_{k=1}^{n} k = n(n+1)/2
339K
det| 10 2 ; 5 11 | = 100
∑_{k=1}^{n} k = n(n+1)/2
358K
det| 6 3 ; 6 7 | = 24
2H₂ + O₂ → 2H₂O
\lim_{r\to 0} \frac{\sin r}{r} = 1